SA Supplements Vol 29 Issue 738supp

SA Supplements

Volume 29, Issue 738supp

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Features

Annual Report of the Commissioner of Patents

The Pergolese Street Skating Rink, Paris

The Norwegian Skee, or Snow Shoe

Surface Waters

Marine Engine Governors

J. D. Churchill

The Hudson River Tunnel

Torpedo Boat with Petroleum Fuel

Improved Gas Battery

Paul Scharf

Protective Rules Relating to Electric Lighting

Electro-Automatic Regulator for Gas

Sibley College Lectures.—1889-90

By the Cornell University Non-Resident Lecturers in Mechanical Engineering

W. Le Conte Stevens

The Chemistry of Glass

Gustav Gehring

Improved Hay and Straw Press

Rabies and its Preventive Treatment

Armand Ruffer

The Great Nebula in Orion

William H. Pickering

Useful Engineering Books

A Singular Meteorite

Building Plans and Specifications